Broschüre Schalungen e

Deflection [mm]
Deflection [mm]
6,0
5,0
4,0
3,0
2,0
1,0
SPAN TABLE
Single-span beam
0,0
0,0 5,0 10,0 15,0 20,0 25,0
Capacity [kN/m]
Multi-span beam
4,0
3,5
3,0
2,5
2,0
1,5
1,0
0,5
0,0
0,0 2,5 5,0 7,5 10,0 12,5 15,0 17,5 20,0
Capacity [kN/m]
Sample calculation
Version 1 / 2011
l = 1,25 m
l = 1,50 m
l = 1,75 m
l = 2,00 m
l = 2,25 m
l = 2,50 m
l = 2,75 m
permissible M
permissible Q
permissible f
Table 1: Crossbeams
Distance between crossbeams (m)
HT 24plus
Table 2: Main beams
Selected distance between main beams (m)
0.5 0.625 0.675 0.75 1 1.25 1.5 1.75 2 2.25 2.5 3 3.5
Floor thickness Total load
cm
KN / m2 Max. support width of crossbeam
Max. permissible support width
= Max. distance between main beams
= Distance between supports
16 6.16 3.71 3.44 3.36 3.24 2.91 2.60 2.37 2.20 2.05 1.88 1.69 1.41 1.21
18 6.68 3.58 3.33 3.24 3.13 2.79 2.50 2.28 2.11 1.95 1.73 1.56 1.30 1.11
20 7.20 3.47 3.22 3.14 3.03 2.69 2.40 2.19 2.03 1.81 1.60 1.44 1.20 1.03
22 7.72 3.37 3.13 3.05 2.94 2.60 2.32 2.12 1.92 1.68 1.50 1.35 1.12 0.96
24 8.24 3.28 3.05 2.97 2.87 2.51 2.25 2.05 1.80 1.58 1.40 1.26 1.05 0.90
26 8.76 3.20 2.97 2.90 2.80 2.44 2.18 1.98 1.70 1.48 1.32 1.19 0.99 0.85
28 9.28 3.13 2.90 2.83 2.73 2.37 2.12 1.87 1.60 1.40 1.25 1.12 0.93 0.80
30 9.80 3.06 2.84 2.77 2.66 2.30 2.06 1.77 1.52 1.33 1.18 1.06 0.88 0.76
32 10.37 3.00 2.78 2.71 2.59 2.24 2.00 1.67 1.43 1.25 1.11 1.00 0.84 0.72
34 10.94 2.94 2.73 2.65 2.52 2.18 1.90 1.58 1.36 1.19 1.06 0.95 0.79 0.68
36 11.51 2.89 2.68 2.59 2.45 2.13 1.81 1.51 1.29 1.13 1.00 0.90 0.75 0.65
38 12.08 2.84 2.62 2.53 2.40 2.07 1.72 1.43 1.23 1.08 0.96 0.86 0.72 0.61
40 12.65 2.80 2.56 2.47 2.34 2.03 1.64 1.37 1.17 1.03 0.91 0.82 0.69 0.59
45 14.08 2.69 2.43 2.34 2.22 1.85 1.48 1.23 1.06 0.92 0.82 0.74 0.62 0.53
50 15.50 2.59 2.32 2.23 2.11 1.68 1.34 1.12 0.96 0.84 0.75 0.67 0.56 0.48
55 16.93 2.48 2.22 2.13 2.02 1.54 1.23 1.02 0.88 0.77 0.68 0.61 0.51 0.44
60 18.35 2.38 2.13 2.05 1.89 1.42 1.13 0.94 0.81 0.71 0.63 0.57 0.47 0.40
65 19.78 2.29 2.05 1.95 1.75 1.31 1.05 0.88 0.75 0.66 0.58 0.53 0.44 0.38
70 21.20 2.21 1.96 1.82 1.64 1.23 0.98 0.82 0.70 0.61 0.55 0.49 0.41 0.35
75 22.50 2.15 1.85 1.71 1.54 1.16 0.92 0.77 0.66 0.58 0.51 0.46 0.39 0.33
80 23.80 2.09 1.75 1.62 1.46 1.09 0.87 0.73 0.62 0.55 0.49 0.44 0.36 0.31
85 25.10 2.04 1.66 1.53 1.38 1.04 0.83 0.69 0.59 0.52 0.46 0.41 0.35 0.30
90 26.40 1.97 1.58 1.46 1.31 0.98 0.79 0.66 0.56 0.49 0.44 0.39 0.33 0.28
95 27.70 1.88 1.50 1.39 1.25 0.94 0.75 0.63 0.54 0.47 0.42 0.38 0.31 0.27
100 29.00 1.79 1.43 1.33 1.20 0.90 0.72 0.60 0.51 0.45 0.40 0.36 0.30 0.26
Required: Distance between main beams and between supports
Available: 36 cm concrete thickness with total load of 11.51 kN/m 2
Selected: Distance between crossbeams of 0.75 m
Result: 2.45 m distance between main beams
(select next larger distance between main beams, here 2.5 m)
0.90 m distance between supports (check carrying capacity of supports)
Mayr-Melnhof Kaufmann 15